Hi,

I have few randomly arranged nodes in my diagram few are connected randomly to each other few have no links at all and I am using GridLayout to arrange those nodes upon click of a button.

I have following requirements while using the GridLayout arrangement for the diagram:

1. After arrangement using gridlayout the nodes should start from the top right corner of the diagram.

2. The arrangement should not change until and unless I change the position of any of the node explicitly if not done the arrangement should not change even if I keep clicking the button continuously.

3. I want the link style for the GridLayout to be straight.

Any suggestions how can I accomplish these tasks.

Thanks and Regards,
Anant Shukla.

Hi Stoyan,

Thanks for the reply.

I have few more requirements which are as follows :

1. While arranging the nodes in GridLayout the links overlap the intermediate nodes, i.e nodes between the source and destination node for the link, in the diagram which is not desired.

2. The position of nodes with no links neither outgoing nor incoming should not be effected by the applied layout arrangement.

Thanks and Regards,
Anant Shukla.

Hi Stoyan,

1. The node overlapping issue is resolved but the links between nodes after arranging the diagram in GridLayout is not working fine they are still bending I need them to be straight.

The code used by me based on your suggestions is as follows :

DiagramLinkCollection links = diagram.Links;
foreach ( DiagramLink link in links){
link.Style = LinkStyle.Polyline;
}

2. Can you please tell me how can I get those nodes from the diagram from which no link is connected neither incoming nor outgoing. A sample code of your suggestion from your last post will help a lot.

Can you tell me what I am doing wrong.

Thanks and Regards,
Anant Shukla.

Hi Stoyan,

I have incorporated your suggestions from last post and the isolated nodes i.e nodes with no incoming or outgoing nodes are not altered by the layout rearrangement. But the complete layout is distorted the complete arrangement gets weird. The arrangement causes each node to be placed in an single line with links overlapping the nodes.

The code used by me is as follows :

private void btnDisHorizontally_Click(object sender, RoutedEventArgs e)
{
DiagramItemCollection items = new DiagramItemCollection();
foreach (DiagramNode node in diagram.Nodes)
{
if (node.IncomingLinks.Count != 0 || node.OutgoingLinks.Count != 0)
{
items.Add(node);
}
}

TreeLayout treeLayout = new TreeLayout();
treeLayout.Type = TreeLayoutType.Cascading;
treeLayout.Direction = TreeLayoutDirections.LeftToRight;
treeLayout.MultipleGraphsPlacement = MultipleGraphsPlacement.Horizontal;
treeLayout.Balance = TreeLayoutBalance.RightHeavy;
treeLayout.Arrange(diagram , items);

DiagramLinkCollection links = diagram.Links;
foreach ( DiagramLink link in links){
link.Style = LinkStyle.Polyline;
link.Route();

}
}

Can you please suggest what is that I am missing,

Thanks